title: UV-C pre-adaptation of Salmonella: effect on cell morphology and membrane fatty acids composition.
abstract: The present study was carried out to evaluate the effects of ultraviolet radiations (UV-C) on the fatty acids composition of three serovars of Salmonella: S. typhimurium, S. hadar and S. zanzibar. Results obtained show that UV-C treatment increases significantly (P ≤ 0.05) the percentage of cyclic fatty acids. The atomic force microscopy was used to study the morphology and cell surface of irradiated strains. Results show that UV-C rays induce morphological changes and alter the bacterial cell surface (presence of grooves and irregularities).
authors.affiliation: Laboratoire de Traitement des Eaux Usées, Centre des Recherches et des Technologies des Eaux (CERTE), Technopole Borj Cédria, BP 273, 8020, Soliman, Tunisia.
authors.forename: Lobna
authors.initials: L
authors.lastname: Maâlej
authors.forename: Abdelwaheb
authors.initials: A
authors.lastname: Chatti
authors.forename: Sana
authors.initials: S
authors.lastname: Khefacha
authors.forename: Kloula
authors.initials: K
authors.lastname: Salma
authors.forename: David
authors.initials: D
authors.lastname: Gottardi
authors.forename: Lucia
authors.initials: L
authors.lastname: Vannini
authors.forename: Maria Elizabetta
authors.initials: ME
authors.lastname: Guerzoni
authors.forename: Abdennaceur
authors.initials: A
authors.lastname: Hassen
mesh_terms: D002462:Cell Membrane / Q000737:chemistry* / Q000528:radiation effects*; D005227:Fatty Acids / Q000032:analysis*; D018625:Microscopy, Atomic Force; D019779:Salmonella enterica / Q000737:chemistry / Q000166:cytology* / Q000528:radiation effects*; D014466:Ultraviolet Rays
chemical_list: D005227:Fatty Acids